Suspension means for vertically-sliding sashes



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H. 'E. CAMPBELL SUSPENSION MEANS FOR VERTICALLY SLIDING ,SASHES I FiledMay 12, 1922 i :i: :i: iii 1" I @L BY I N $1 r N E Aw"; w, W23.

H. E. c M aELL SUSPENSION MEANS FOR VERTICALLY SLIDING sAsHEs File ma12, 1922 v INVENTOR AT TORNEY Patented lt'l, W23.

' HARRY E. CAMPBELL, OF NEW YORK, N. 21, ASSIGNOR T 3 MEWALwl'hl'lfi'llilill sn'srsnnsrorr ELIE VEBTICM4LY-LEEQ implication filedKiley 12,

To all'wlw'm. it may concern:

Be it known that I, Harm CAMPBELL, a citizen of the United States,residing at New York, in the county of New York and State of New York,have invented a certain new and useful Improvement in Suspension Meansfor Verticelly-Sliding Sashes, of which the following is n secificetion.

The invention is suspensin means for counterweighted metal sashesvertically sliding in frames, and relates more particularly to the typeof metal Window shown in U. S. Letters Patent No. 1,241,090, granted to.me September 25, 1917'.

The invention consists, first, in the construction whereby the ends ofthe suspension chains are connected to the extension plates on the siderails of said. sashes, and second, to the arrangement of partitionshinged ct one vertical edge and. disposed within the counterweightchamber in the frame jarnhs, whereby the conntcrweights are separatedfrom one another by a yielding barrier which preven s frictionalresistance'due' to contact of said counterweights with one another, orsuch as would occur were a fixed barrier present.

In the accompanying, drawings Fig. 1 is a vertical section 01 my Window-1 1113118 and sashes on the-line 1, 1 of Fig. 2.

Fig. 2 is a horizontal section of the same on the line 2, .2 of Fig. 1.Fig. 3 is a vertical section of the same on the line 3, 3 of Fig. 2.Fig. 4 is a perspective View of the hook formed in one of the sashextension plates, with the connecting device for the suspension chain inplace therein.

Similar numbers and letters of reference indicate like parts.

As shown in my aforesaid Letters Patent, the Vertically sliding sashes5, 6 are here provided with metal extension plates 7, 8 laterallyprojecting from the side rails and entering vertical gaps 9, 10 in theinner wall of each jarnb. The sashes are respectively counterbalanced bythe Weights ll, 12, the flexible suspension members or chains .13, 14connected to said sashes .and said weights passing over suitable pulleys15, 16 disposed within the lintel 17 said weights being disposed in thejanihs.

The suspension chains 13, l; are connected to the extension plates ofthe sashes in the following mii-nner -(see Fig. t). In the vertical edgeof. each extension plate is 3.922. Serial lilo. 555535223 formed :2.recess A of suhstentielly the shape shown so as to produce a. downwardlyturned hook B. The attaching device Sis in loop form having parallelarms ll, in ench of which is e VEIlZICZtl SlOi E of suili oient lengthand area to over the down t-urnedportion of the hook B and become reived in the portion of the recess between said hook portion and theherb" oi the piste.

The width of the slotted arms is preferably.

greater than that of the intervening loop F, and the device is so thatFig. 4. pressed against recess; Zlhe end llllh: G of the sun chainieceives the loop F, or is thereto in I produce nvery simple said armswill he soinen'hnt coin to'gether and so hear resiliently the adjacentvertical edges of said nensi in and che p mode sch er any suitablemanner. in this Why preferably of spring metal, 1 when seated in place.as shown in of nttschi-hent' for the suspension c sins and also onewhich ensures that set-id chsins shall he i /holly enclosed in thejsmhs.

In order to save metal and th melts the janibs as light and as small aspossible, the necessary cross sections}. area of the chemher therein inwhich the counterweights travel up and down has heen. reduced bybringing the .weights quite close together: and in order to preventtheir frictional contact in passing one another, a fixed barrier orpartition has been interposed between them.- lVhe're, as is commonly theease, the Weights are merely rough castings more or less irregular inshape with varying small surface projections, in event of thewindowframe becoming a little out of plumb (as may happen throughimperfect setting of said frame or settling of the wall in which theframe is located), one or the other of the pair of weights may swinginto Contact with said fixed partitionv and 'considernhie frictionalresistance may follow which opposes the desired free movement of saidweights.

1 obviate this trouhle by hinging the Yer to the jamh Wall and carryinga curved arm K which extends through an opening near the edge of thepartition. In case either height swings into contact with the hingedpartition, said partition then. yields suffientering vertical gaps inthe inner walls-of the frame jambs comprising flexible sus-.

pension members for said sashes and sash counterweights connected tosaid members,

downwardly turned hooks formed integrally in the vertical edge of eachextension plate, and looped metal plates having in their arms slotsengaging said hooks the said looped plates receiving the free ends ofsaid flexible suspension members. 1

3. The combination of claim 2, further including that the said loopedplates are of spring metal, the said arms being normally separated attheir ends to a width greater than that of the spaces within the hooks,whereby, when seated in said hooks,.said

menses arms are compressed together to bear resiliently against theinner vertical edges of said hooks.

.4. Suspension for avertically sliding sash having lateral extensionplates entering gaps in the Window-frame, comprising downwardly turnedhooks formed integrallyin the vertical edges of said extension plates,and means for connecting the ends of flex ible suspension membersto saidhooks.

5. Suspension means for vertically sliding sashes disposed in hollow jambs, comprising flexible suspension members secured to said sashes,oounterweights carried by said suspension members, the saidcounterweights and suspension members being enclosed in said jambs, andpartitions in said jambs interposed between said .counterweights andextending from top to bottom of said jambs,

each partition being hinged at one vertical edge to a. wall of itscontaining jamb.

In testimony whereof I have aiiixed my signature in presence of twoWitnesses.

HARRY E. CAMPBELL.

Witnesses:

GERTRUDE T PORTEB,- 7 MAY Te MOGARRY.

